MP2 TLS 100mm Needle

Product code: SL975/9

Category: Soil and Geotechnical

General-purpose thermal conductivity needle probe. The MP2 100 mm Needle Probe is a Transient Line Source (TLS) sensor designed for use with the Thermtest MP-2 Thermal Conductivity Measurement Platform. It is used to measure the thermal conductivity and thermal resistivity of soft and semi-solid materials. The probe consists of a slender stainless steel needle containing an integrated heating element and temperature sensor. During operation, the probe is inserted directly into the sample, where it applies a controlled heat input and monitors the resulting temperature response to determine thermal properties. This 100 mm needle is the standard, general-purpose probe within the MP-2 system, offering a balance between penetration depth and measurement stability. It is particularly well suited for soil testing, geotechnical analysis, polymers, pastes, powders, and other soft materials. The probe is compatible with the MP-2 system’s automatic sensor recognition, enabling quick setup and efficient testing in both laboratory and field environments. Specifications General Probe type: Transient Line Source (TLS) needle Probe length: 100 mm Construction: Stainless steel needle with internal heater and temperature sensor Compatible instrument: Thermtest MP-2 Measurement Performance Thermal conductivity range: 0.1 to 5 W/m·K Thermal resistivity range: 0.2 to 10 m·K/W Accuracy: ±5% Repeatability: ±2% Typical measurement time: ~180 seconds Operating Conditions Temperature range: −40 °C to 100 °C Application Range Suitable materials: Soils and geotechnical samples Polymers Pastes and powders Soft or easily penetrable solids Operational Requirements Full insertion into the sample required for accurate measurement Best suited for homogeneous, isotropic materials

Price and availability are confirmed by quotation. Request a quotation.